Swatting flies is difficult - they have all-round vision, lightning reflexes, and can fly rapidly and unpredictably. But, a perforated fly swatter will kill them first swat - more often than not.
Apparently flies are helpless against this weapon. Presumably because the perforations prevent a wall of compressed air interposing between the fly and the approaching swatter - as happens with the traditional fly swatting device, the rolled-up newspaper. Presumably, before being hit by the newspaper, the fly is expelled sideways by the compressed air... I don't really know, it happens too fast to see.
Kudos, then, to the perforated fly swatter - for solving a serious problem so simply and cheaply.
PS: Mine - like the illustration above - has a line of spikes along the distal edge, which is handy for extricating and lifting the dead fly, for carrying it to the waste bin.
